Tea and Coffee: Health Benefits, Risks & How Much Is Too Much? Tea and coffee are among the most consumed beverages worldwide, but their effects on health depend on quantity, timing, and individual sensitivity. While they provide antioxidants, improve alertness, and boost metabolism, excessive intake can lead to acidity, sleep problems, anxiety, dehydration, and increased heart rate. In this video, we explain the benefits of tea and coffee, common myths, safe daily limits, and who should be caut